Mobile terminal and calibrating device for analog-to-digital converter (ADC) module thereof
一种移动终端、校准装置的技术,应用在模拟/数字转换校准/测试、模数转换器、模/数转换等方向,能够解决ADC模块校准误差、影响外部模拟信号准确性等问题,达到减少校准误差、提高校准效率的效果
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0021] figure 2 The structure of the calibration device for the ADC module in the mobile terminal provided by the embodiment of the present invention is shown.
[0022] The ADC module is set in the baseband chip BB or the power management chip PMIC, and the device also includes a bandgap voltage source inside the mobile terminal platform, and the bandgap voltage source is used to generate a reference voltage Vref.
[0023] The device also includes a circuit connected to the bandgap voltage source, the circuit connected to the ADC module, and used to provide the reference voltage generated by the ...
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